Windows2003-3790/windows/appcompat/shims/layer/emulategetprofilestring.cpp

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2001-01-01 00:00:00 +01:00
/*++
Copyright (c) 2000 Microsoft Corporation
Module Name:
EmulateGetProfileString.cpp
Abstract:
GetPrivateProfileString no longer stops parsing at a space or tab
character. When users leave what used to be comments on the tail of the
string the comments are now passed to the app resulting in errors.
Notes:
This is a general purpose shim
History:
12/30/1999 a-chcoff Created
--*/
#include "precomp.h"
IMPLEMENT_SHIM_BEGIN(EmulateGetProfileString)
#include "ShimHookMacro.h"
APIHOOK_ENUM_BEGIN
APIHOOK_ENUM_ENTRY(GetPrivateProfileStringA)
APIHOOK_ENUM_END
/*++
This stub function cleans up when users leave what used to be comments on
the tail of the string the comments were passed to the app resulting in
errors. Now the string is terminated before the comments therefore
alleviating the errors.
--*/
DWORD
APIHOOK(GetPrivateProfileStringA)(
LPCSTR lpAppName,
LPCSTR lpKeyName,
LPCSTR lpDefault,
LPSTR lpReturnedString,
DWORD nSize,
LPCSTR lpFileName
)
{
DWORD dwRet;
char* pTemp1 = (char*)lpReturnedString;
char* pTemp2 = (char*)lpReturnedString;
//
// First just go get the string.
//
dwRet = ORIGINAL_API(GetPrivateProfileStringA)(
lpAppName,
lpKeyName,
lpDefault,
lpReturnedString,
nSize,
lpFileName);
//
// Look for comment.
//
while (*pTemp1 != ';' && *pTemp1) {
pTemp1++;
}
if ((pTemp1 != pTemp2) && *pTemp1) {
LOGN(
eDbgLevelError,
"[GetPrivateProfileStringA] Comment after data in file \"%s\". Eliminated.",
lpFileName);
//
// Did not make it to end of line better trim it
// back up to ';' char
pTemp1--;
//
// Back up past interposing whitespace.
//
while ((*pTemp1==' ') || (*pTemp1=='\t')) {
pTemp1--;
}
pTemp1++;
//
// Set new length.
//
dwRet = (DWORD)((ULONG_PTR)pTemp1 - (ULONG_PTR)pTemp2);
//
// and NULL term string
//
*pTemp1 = '\0';
}
return dwRet;
}
/*++
Register hooked functions
--*/
HOOK_BEGIN
APIHOOK_ENTRY(KERNEL32.DLL, GetPrivateProfileStringA)
HOOK_END
IMPLEMENT_SHIM_END